<template>
  <transition name="showfood">
    <div v-show="showFlag" class="food" ref="food">
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image">
          <div class="back" @click="hide">
            <i class="icon-arrow_lift"></i>
          </div>
        </div>
        <div class="content">
          <div class="title">{{food.name}}</div>
          <div class="detail">
            <span class="sell-count">月售{{food.sellCount}}份</span>
            <span class="rating">好评率{{food.rating}}%</span>
          </div>
          <div class="price">
            <span class="now">￥{{food.price}}</span><span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
          </div>
          <div class="cartcontrol-wrapper">
            <cartcontrol @getAddButtonElements="takeAddButtonElements" :food="food"></cartcontrol>
          </div>
          <transition name="fade">
            <div @click.stop="addFirst" class="buy" v-show="!food.count || food.count===0">加入购物车</div>
          </transition>
        </div>
        <!-- split为分各区域组件，无内容 -->
        <split></split>
        <div class="info" v-show="food.info">
          <h1 class="title">商品介绍</h1>
          <p class="text">{{food.info}}</p>
        </div>
        <split></split>
        <div class="rating">
          <h1 class="title">商品介绍</h1>
          <!-- 引入评价组件 -->
          <ratingselect
          :select-type="selectType"
          :only-content="onlyContent"
          :desc="desc"
          :ratings="food.ratings"
          @getSelectType="syncSelectType"
          @getOnlyContent="syncOnlyContent"
          >
          </ratingselect>
          <div class="rating-warpper">
            <ul v-show="food.ratings && food.ratings.length">
              <li v-show="needShow(rating.rateType,rating.text)" class="rating-item border-1px" v-for="rating in food.ratings" :key="rating.rateTime">
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img class="avatar" :src="rating.avatar" width="20" height="20">
                </div>
                <div class="time">{{rating.rateTime | formatDate}}</div>
                <p class="text">
                  <span class="icon" :class="{'icon-thumb_up':rating.rateType===0, 'icon-thumb_down':rating.rateType===1}"></span>
                  <span>{{rating.text}}</span>
                </p>
              </li>
            </ul>
            <div class="no-rating" v-show="!food.ratings || !food.ratings.length">暂无评价</div>
          </div>
        </div>
      </div>
    </div>
  </transition>
</template>

<script>
import BScroll from 'better-scroll';
import cartcontrol from '../cartcontrol/cartcontrol.vue';
import Vue from 'vue';
import split from '../split/split.vue';
import ratingselect from '../ratingselect/ratingselect.vue';
import { formatDate } from '../../common/js/date.js';

const POSITIVE = 0;
// const NEGATIVE = 1;
const ALL = 2;
export default {
    props: {
      food: {
        type: Object
      }
    },
    data() {
      return {
        showFlag: false,
        selectType: POSITIVE,
        onlyContent: false,
        desc: {
          all: '全部',
          positive: '推荐',
          negative: '吐槽'
        }
      };
    },
    components: {
      cartcontrol: cartcontrol,
      split: split,
      ratingselect: ratingselect
    },
    filters: {
      formatDate(time) {
        let date = new Date(time);
        return formatDate(date, 'yyyy-MM-dd hh:mm');
      }
    },
    methods: {
      needShow(type, text) {
        if (this.onlyContent && !text) { // 只显示内容 且 没有文本内容的时候，就不显示该条评价
          return false;
        }
        if (this.selectType === ALL) {
          return true;
        } else {
          return type === this.selectType;
        }
      },
      syncSelectType(type) {
        this.selectType = type;
        // console.log('我是：' + type); // 测试是否成功同步rating.vue中的传过来的值
        // this.$nextTick(() => {
        //   this.scroll.refresh();
        // });
      },
      syncOnlyContent(bool) {
        this.onlyContent = bool;
        // console.log('我是：' + bool); // 测试是否成功同步rating.vue中的传过来的值
        // this.$nextTick(() => {
        //   this.scroll.refresh();
        // });
      },
      takeAddButtonElements(element) {
        this.$emit('sendButtonElment', element);
      },
      show() {
        this.showFlag = !this.showFlag;
        // 保持底下两个状态初始化
        this.selectType = 0;
        this.onlyContent = false;
        console.log('我在父组件good中被调用了');
        this.$nextTick(() => {
          if (!this.scroll) {
            this.scroll = new BScroll(this.$refs.food, {
              click: true
            });
          } else {
            this.scroll.refresh();
          }
        });
      },
      hide() {
        this.showFlag = !this.showFlag;
      },
      addFirst(e) {
        console.log(e);
        console.log('clicked!!!!!');
        // if (!e._constructed) {
        //   return;
        // }
        Vue.set(this.food, 'count', 1);
      }
    }
};
</script>

<style lang="stylus">
@import '../../common/stylus/mixin.styl';

  .food
    position fixed
    left 0
    top 0
    bottom 48px
    z-index 30 // 小于弹出的购物车的层级
    width 100%
    background #fff
    &.showfood-enter,&.showfood-leave-to
      transform translate3d(100%,0,0)
      opacity 0
      transition all 0.2s linear
    &.showfood-enter-active,&.showfood-leave-active
      transition all 0.2s linear
      // transform translate3d(0,0,0) // 千万不要在这里设置要到达的终点位置，因为立刻就到了（立刻就设置好了）
    .image-header
      position relative
      width 100%
      height 0
      padding-top 100% // 给宽度值设置为100%的时候，盒子的padding值是根据盒子的宽度来计算的，在这里就是和width是一样的，所以这个盒子就是一个宽高相等的容器
      img
        position absolute
        top 0
        left 0
        width 100%
        height 100%
      .back
        position absolute
        top 10px
        left 0
        .icon-arrow_lift
          display block
          padding 10px
          font-size 20px
          color #ffffff
    .content
      position relative
      padding 18px
      .title
        margin-bottom 8px
        line-height 14px
        font-size 14px
        font-weight 700
        color rgb(7,17,27)
      .detail
        font-size 0
        margin-bottom 18px
        line-height 10px
        height 10px
        .sell-count,.rating
          display inline-block
          font-size 10px
          color rgb(147,153,159)
        .rating
          margin-left 12px
      .price
        font-weight 700
        line-height 24px
        .now
          margin-right 18px
          font-size 14px
          color rgb(240,20,20)
        .old
          text-decoration line-through
          font-size 10px
          line-height 24px
          color rgb(147,153,159)
      .cartcontrol-wrapper
        position absolute
        right 12px
        bottom 12px
      .buy
        position absolute
        right 18px
        bottom 18px
        z-index 10
        height 24px
        line-height 24px
        padding 0 12px
        box-sizing border-box
        font-size 10px
        border-radius 12px
        color #fff
        background #3aa2dc
        &.fade-enter,&.fade-leave-to
          opacity 0
          transition all 0.3s
        &.fade-enter-active,&.fade-leave-active
          transition all 0.3s
    .info
      padding 18px
      .title
        line-height 14px
        margin-bottom 6px
        font-size 14px
        color rgb(7,17,27)
      .text
        line-height 24px
        padding-left 8px
        padding-right 8px
        font-size 12px
        color rgb(77,85,93)
        text-indent 2em
    .rating
      padding-top 18px
      .title
        line-height 14px
        margin-left 18px
        font-size 14px
        color rgb(7,17,27)
      .rating-warpper
        padding 0 18px
        .rating-item
          position relative
          padding 16px 0
          border-1px(rgba(7,17,27,0.1))
          .user
            position absolute
            top 16px // 虽然父元素有个16px的padding，但是padding不会影响到绝对定位，所以要加上top：16px来保持平齐
            right 0
            font-size 0
            .name
              display inline-block
              vertical-align top
              font-size 14px
              color rgb(147,153,159)
              line-height 20px
              margin-right 6px
            .avatar
              border-radius 50%
          .time
            margin-bottom 6px
            line-height 12px
            font-size 10px
            color rgb(147,153,159)
          .text
            line-height 16px
            font-size 12px
            color rgb(7,17,27 )
            .icon
              line-height 16px
              font-size 12px
            .icon-thumb_up
              color rgb(0,160,220)
            .icon-thumb_down
              color rgb(147,153,159)
        .no-rating
          padding 16px 0
          font-size 12px
          color rgb(147,153,159)
</style>
